As a kid, I heard about Mary, Queen of Scots, and "Bloody Mary." It was hard telling who was who. And they were all involved with a Queen Elizabeth and pirates, buccaneers, etc. Mary, Queen of Scots sought help from Queen Elizabeth of England to the great detriment of Mary.
Her Wikipedia article is here.

ca. 1558 Mary Stuart by Adolphe Pierre Riffaut, after François Clouet (National Portrait Gallery, London)

ca. 1559 Copy of Mary, Queen of Scots after François Clouet (Victoria and Albert Museum - London, UK)

Possibly Mary, Queen of Scots by ? (Burghley House Collection, Burghley House - Stamford, Lincolnshire UK)

Called 'Mary, Queen of Scots (1542–1587)' by ? (Hardwick Hall Doe Lea - Chesterfield, Derbyshire, UK)

1565 Official portrait of Mary, Queen of Scots (Blairs Museum, The Museum of Scotland's Catholic Heritage - Aberdeen, Aberdeenshire UK)

1575 Royal lady traditionally identified with Mary, Queen of Scots by Federico Zuccaro after Alonso Sánchez Coello (Chatsworth House - Bakewell, Derbyshire, UK)

ca. 1578 Queen Mary of Scots in black and white by ? after Nicholas Hilliard (location ?) entire image

ca. 1578 Out take of Queen Mary of Scots in black and white by ? after Nicholas Hilliard (location ?)
